Implemantation of VMware NSX integration

Added new puppet module for Neutron NSX plugin integration.
* Separate classes for compute/controller
* Some additional paramenters required from Nailgun
* Hide some strange hacks with Anchors
* Add rdpkg and rrpm package managers in order to download
  packages from remote web-server using mask for a package name.
* Fix sanitaze_neutron_config to merge boolean values.

Change-Id: I94e7bf2fccc289d0d52fc3d3018db268ec4f7fff
Implements: blueprint neutron-nsx-plugin-integration
Merge "Implemantation of VMware NSX integration"